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Old 05-02-2014, 05:50 PM   #11
2doorrocket
 
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Drives: Gas Guzzlers
Join Date: Feb 2014
Location: San Diego, CA
Posts: 168
Just have them flash it, they have no business downloading and sending your tune to GM. Just pay them to do it, do not have them do it under warranty. it wouldn't cost you more than 80 dollars to plug it in and do exactly the following.

Reflash ECM
Reflash TCM
Reset Transmission Adaptives
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